Trivia Quiz On CISCO Networking And Routers!
This quiz has been designed for students, professionals and learners who are learning Networking concepts or preparing for exams. This will help you to prepare for the final Cisco test. It has multiple choice questions. So, let's try out this quiz. All the best!
- 1.
A network administrator is removing several VLANs from a switch. When the administrator enters the no VLAN 1 command, an error is received. Why did this command generate an error?
- A.
VLANs can only be deleted by the user who created them.
- B.
VLAN 1 can not be deleted until another VLAN has been assigned its responsibilities.
- C.
The command was not entered properly, which caused a syntax error to occur.
- D.
VLAN 1 can not be deleted until all ports have been removed from it.
- E.
VLAN 1 is the management VLAN by default and can not be deleted.
Correct Answer
E. VLAN 1 is the management VLAN by default and can not be deleted.Explanation
The command "no VLAN 1" generated an error because VLAN 1 is the default management VLAN and cannot be deleted.Rate this question:
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- 2.
Employees of XYZ Company connect their laptop computers to the office LAN using Ethernet ports. The Cisco switches used in the company network are configured with port security. At which layer of the three-layer design model do these switches operate?
- A.
Physical
- B.
Distribution
- C.
Data link
- D.
Access
- E.
Core
Correct Answer
A. pHysicalExplanation
The Cisco switches used in the company network operate at the physical layer of the three-layer design model. The physical layer is responsible for the actual transmission of data over the network, including the physical connections and hardware such as cables and ports. In this case, the switches are used to connect the employees' laptop computers to the office LAN using Ethernet ports, which falls under the physical layer's functionality.Rate this question:
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- 3.
Refer to the routing table shown in the exhibit. What is the meaning of the highlighted value 192?
- A.
It is the value assigned by the Dijkstra algorithm that designates the number of hops in the network.
- B.
It is the value used by the DUAL algorithm to determine the bandwidth for the link.
- C.
It is the metric, which is cost.
- D.
It is the administrative distance.
Correct Answer
D. It is the administrative distance.Explanation
The highlighted value 192 in the routing table represents the administrative distance. Administrative distance is a measure used by routers to determine the trustworthiness of a routing protocol. It is a numerical value assigned to each routing protocol, where a lower value indicates a higher priority. In this case, the administrative distance of 192 suggests that the routing protocol associated with this entry is considered less trustworthy or has a lower priority compared to other routing protocols in the network.Rate this question:
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- 4.
What are two advantages provided by OSPF authentication? (Choose two.)
- A.
It ensures that routing information comes from a valid source router.
- B.
It ensures that OSPF routing information takes priority over RIP or EIGRP updates.
- C.
It encrypts routing tables to prevent unauthorized viewing.
- D.
It reduces OSPF information exchange overhead.
- E.
It prevents routing information from being falsified in transit.
Correct Answer(s)
A. It ensures that routing information comes from a valid source router.
C. It encrypts routing tables to prevent unauthorized viewing.Explanation
OSPF authentication provides two advantages. Firstly, it ensures that routing information comes from a valid source router, which helps in preventing unauthorized or false routing information from being accepted. Secondly, it encrypts routing tables, thereby preventing unauthorized viewing and ensuring the confidentiality of the routing information.Rate this question:
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- 5.
A network administrator is having problems with excessive collisions on the corporate network. If the network currently uses hubs, what is the most cost-effective way to reduce collisions?
- A.
Add additional hubs
- B.
Replace hubs with switches
- C.
Replace hubs with access points
- D.
Add a router to every hub segment
Correct Answer
B. Replace hubs with switchesExplanation
Replacing hubs with switches is the most cost-effective way to reduce collisions on the corporate network. Hubs operate at the physical layer of the OSI model and share the bandwidth among connected devices, leading to collisions. Switches, on the other hand, operate at the data link layer and create separate collision domains for each port. This means that devices connected to switches can communicate simultaneously without collisions, improving network performance. Additionally, switches can also provide other benefits like better security, scalability, and management capabilities compared to hubs.Rate this question:
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- 6.
Which statements describe features of full-duplex Ethernet? (Choose three.)
- A.
Allows packets to be received and sent simultaneously by a host
- B.
Requires a minimum of two wires
- C.
Reduces the number of collisions
- D.
Allocates 100 percent of the bandwidth in both directions
- E.
Increases the number of broadcast domains
Correct Answer(s)
C. Reduces the number of collisions
D. Allocates 100 percent of the bandwidth in both directions
E. Increases the number of broadcast domainsExplanation
Full-duplex Ethernet allows packets to be received and sent simultaneously by a host, which reduces the number of collisions. It also allocates 100 percent of the bandwidth in both directions, ensuring maximum efficiency. However, it does not increase the number of broadcast domains. Full-duplex Ethernet requires a minimum of two wires to support simultaneous communication.Rate this question:
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- 7.
What does a constant green SYSTEM LED indicate on a Catalyst switch?
- A.
The switch has passed POST and is working properly
- B.
The switch has failed POST.
- C.
The switch is in the process of initializing ports.
- D.
The switch is going through POST.
- E.
The switch is actively sending and receiving frames.
Correct Answer
A. The switch has passed POST and is working properlyExplanation
A constant green SYSTEM LED indicates that the switch has passed the Power-On Self Test (POST) and is working properly. POST is a diagnostic test that checks the hardware and software components of the switch during startup. If the switch fails the POST, it would not be able to function properly. Therefore, a constant green SYSTEM LED indicates that the switch has successfully completed the startup process and is ready to operate.Rate this question:
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- 8.
Refer to the exhibit. Which command will remove the static address from the MAC address table?
- A.
ALSwitch(config)# no mac-address-table entry 00e0.2917.1884 fastethernet interface 0/4 VLAN 1
- B.
ALSwitch(config)# no mac-address-table entry 00e0.2917.1884 VLAN 1 fastethernet 04
- C.
ALSwitch(config-if)# no mac-address-table entry static 00e0.2917.1884 VLAN 1 fastethernet 04
- D.
ALSwitch(config-if)# no mac-address-table static 00e0.2917.1884 VLAN 1 fastethernet 04
- E.
ALSwitch(config)# no mac-address-table static 00e0.2917.1884 interface fastethernet 0/4 VLAN 1
Correct Answer
E. ALSwitch(config)# no mac-address-table static 00e0.2917.1884 interface fastethernet 0/4 VLAN 1Explanation
The correct command to remove the static address from the MAC address table is "ALSwitch(config)# no mac-address-table static 00e0.2917.1884 interface fastethernet 0/4 VLAN 1". This command specifically targets the static entry with the MAC address 00e0.2917.1884 and removes it from the MAC address table for the specified interface, VLAN, and port.Rate this question:
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- 9.
Refer to the OSPF network in the exhibit. Router REMO_2 has been elected DR, but router REMO_1 is the more powerful router. How can the network administrator configure REMO_1 to force it to be elected as DR?
- A.
REMO_1(config)# interface fastethernet 0/0 REMO_1(config-if)# ospf priority 0
- B.
REMO_1(config)# interface fastethernet 0/0 REMO_1(config-if)# ip ospf priority 0
- C.
REMO_1(config)# interface fastethernet 0/0 REMO_1(config-if)# ip ospf priority 255
- D.
REMO_1(config)# ospf priority 1
- E.
REMO_1(config)# ip ospf priority 255
Correct Answer
C. REMO_1(config)# interface fastethernet 0/0 REMO_1(config-if)# ip ospf priority 255Explanation
To configure REMO_1 to force it to be elected as DR, the network administrator should set the OSPF priority of REMO_1 to the highest value possible, which is 255. This can be done by entering the command "REMO_1(config)# interface fastethernet 0/0 REMO_1(config-if)# ip ospf priority 255" in the router's configuration. By setting the priority to 255, REMO_1 will have a higher priority than REMO_2 and will be elected as the DR.Rate this question:
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- 10.
Refer to the exhibit. Which configuration commands will direct outbound traffic from RT-2 to the ISP and inbound traffic from the ISP to network 192.0.2.0/27?
- A.
RT-2(config)# ip route 172.16.127.0 255.255.255.0 serial 0/1 ISP(config)# ip route 192.0.2.0 255.255.255.224 serial 0/0
- B.
RT-2(config)# ip route 0.0.0.0 0.0.0.0 serial 0/1 ISP(config)# ip route 192.0.2.0 255.255.255.224 serial 0/0
- C.
RT-2(config)# ip route 172.16.127.0 255.255.255.0 serial 0/1 ISP(config)# ip route 0.0.0.0 0.0.0.0 serial 0/0
- D.
RT-2(config)# ip route 0.0.0.0 0.0.0.0 serial 0/1 ISP(config)# ip route 0.0.0.0 0.0.0.0 serial 0/1
Correct Answer
B. RT-2(config)# ip route 0.0.0.0 0.0.0.0 serial 0/1 ISP(config)# ip route 192.0.2.0 255.255.255.224 serial 0/0Explanation
The given configuration commands will direct outbound traffic from RT-2 to the ISP and inbound traffic from the ISP to network 192.0.2.0/27. The command "RT-2(config)# ip route 0.0.0.0 0.0.0.0 serial 0/1" on RT-2 sets a default route, which means that any traffic with a destination IP address that is not in the routing table will be forwarded to the ISP. The command "ISP(config)# ip route 192.0.2.0 255.255.255.224 serial 0/0" on the ISP sets a specific route for network 192.0.2.0/27, which means that any traffic with a destination IP address in that network will be forwarded to RT-2.Rate this question:
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- 11.
Refer to the exhibit. How should an administrator configure the ports on switches ACC-1 and ACC-2 to allow hosts on the same VLAN to communicate across the two switches?
- A.
As trunks
- B.
As access ports
- C.
As channels
- D.
As inter-VLAN ports
- E.
As bridge ports
Correct Answer
A. As trunksExplanation
To allow hosts on the same VLAN to communicate across the two switches, the administrator should configure the ports on switches ACC-1 and ACC-2 as trunks. Trunk ports are used to carry traffic for multiple VLANs, allowing VLAN information to be transmitted between switches. By configuring the ports as trunks, the switches will be able to pass VLAN traffic between them, enabling communication between hosts on the same VLAN across the switches.Rate this question:
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- 12.
How do EIGRP routers establish and maintain neighbour relationships?
- A.
By exchanging neighbor tables with directly attached routers
- B.
By comparing known routes to information received in updates
- C.
By exchanging of hello packets with neighboring routers
- D.
By dynamically learning new routes from neighbors
- E.
By exchanging routing tables with directly attached routers
Correct Answer
C. By exchanging of hello packets with neighboring routersExplanation
EIGRP routers establish and maintain neighbor relationships by exchanging hello packets with neighboring routers. These hello packets contain information about the router's EIGRP configuration and are used to discover and establish neighbor relationships. Once the hello packets are exchanged, the routers can exchange routing information and update their neighbor tables accordingly. This process allows EIGRP routers to establish and maintain efficient communication and routing within the network.Rate this question:
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Current Version
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Oct 15, 2024Quiz Edited by
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Dec 05, 2008Quiz Created by
MSalmons
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